sure. my personal is a mix of brown and grey with some airline and rain sounds blended in. using the "whitenoise" on iOS and macOS. I think the airline and r

sure. my personal is a mix of brown and grey with some airline and rain sounds blended in. using the "whitenoise" on iOS and macOS. I think the airline and rain sounds are some of the 'higher' ones that block out other stuff (and I'm usually using qc20 headphones as well).